ICA（主分量分析）算法和程序，分析了该信号的时域、频域、倒谱，循环谱等,使用高阶累积量对MPSK信号进行调制识别，给出接收信号眼图及系统仿真误码率，抑制载波型差分相位调制，信号维数的估计，包括随机梯度算法，相对梯度算法。- ICA (Principal Component Analysis) algorithm and procedures, Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. Using high-order cumulants of MPSK signal modulation recognition, The received signal is given eye and BER simulation systems, Suppressed carrier type differential phase modulation, Signal dimension estimates, Including stochastic gradient algorithm, the relative gradient algorithm.